Support for hair drier hoods or the like



Aug. 25, 1936. M. EHRLICH SUPPORT FOR HAIR DRIER HOODS OR THE LIKE FiledJune 13, 1934 INVENTOR Marimilzlm Ehrlich M ORNEY ence to theaccompanying drawing, forming part Patented 25, 1936 SUPPORT J. P.Fischer Inc., tion of New York son. rum DRIER noons on run mm.

Maximilian Ehrlich, Broo klyn, N. Y., assignor to New York, N. Y., acorpora- Application June 13, 1934, Serial No. 730,501

s Claims. (01. 248-161) This invention relates to hair driers or thelike of the type that are adapted to rest onthe floor and which areprovided with a base, a telescopic post supported by the base and ahood'pivotally supported at the top of the telescopic post.

This invention relates particularlyto such devices where the hood isadjustably elevated and adjustably tilted, and is provided with means toretain the hood in the desired elevated position and with means toretain the hood in the desired tilted position.

The invention resides in the novel arrangement and combination of theelevating and tilting means whereby simple manipulation of the partsaffects the desired elevation and angular positioning of the hood.

One of the main objects of the invention is to provide a device of thischaracter with means for counterbalancing the weight of the hood and itsassociated parts whereby the vertical positioning of the hood isfacilitated. This means also is adapted to serve as a counterbalanceagainst over tilting of the hood whereby the tilt or angular positioningof the hood is also facilitated.

' Another important object of the invention is to provide in a device ofthis character such novel counterbalancing means without destroying theesthetic appearance of the device which therefore has no unsightlyvisible parts.

A further object of the invention is to provide means whereby theadjustments may be quickly and accurately made.

A still further object of the invention is to provide suchcounterbalancing means that are simple, rugged and unlikely to get outof order.

Other objects and advantages will appear after reading the followingdescription having referof this disclosure, and particularly pointed outin the claims hereto appended.

It is well known that devices of this character are apt to tip over whenbeing adjusted for application. This is due mainly to the cumbersome andinsecure method of adjusting the parts to their proper elevation andangulation of the hood. In such devices prior to this invention whereone frictional or other clamping means have been employed to hold thehood in the desired vertical position and another frictional or otherclamping means is employed to hold the hood in a desired tiltedposition, independent counterbalancing means have been employed to bearthe weight of the parts when one or the other of the clamps wereloosened. In other words, heretofore a spring was used as acounterbalance against the weight of the hood plus the weight of theupper /telescopic member and the associated parts when the verticaladjustment clamp was loosened. Likewise, a separatespring was employedin the prior art to resist or prevent the too sudden tilting 5 of thehood when the tilt adjustment clamp was loosened. Some of the devices inthe prior art have employed no such latter mentioned restraining meansat all and depended upon a frictional clamp so tight as to render the.tilting adjustment diflicultwhen the clamp wasnot loosened duringadjustment, thus allowing the hood to fallunrestrained if-and when thesuch tilting clamp was loosened.

The tiltable hood in these devices swing freely on their pivots when thetilting clamp is loosened, because the center of gravity of the hood isusually disposed to one side of its supporting pivot. When the clampingmeans are loosened the entire hood if unrestrained, swings, underthe'influence of its ofiset center of gravity, with such force .as

to cause the entire device -to tip on its base. In

many. cases when the tilting clamp is loosened and the hood swingsunrestrained and the device does not tip over entirely, the hood inswinging sharply downwardly on its pivot often strikes the personreceiving or about to receive treatment from the device.

The invention therefore contemplates a device in which the-abovementioned danger during adjustment is obviated and which is providedwith adjusting means for proper application with a minimum of effort andmaximum speed.

In carrying out the invention it is proposed to employ a single springas a. counterbalancing means for supporting the weight of the hood andthe associated parts. This spring is also adapted to bear theoverbalanced weight of the hood when its center of gravity is oflset andis further adapted to provide frictional pressure against the hood toretain the hood in its desired tilted position.

In the drawing:

Figure 1 is a perspective view of a device embodying the invention.

Figure 2 is a fragmentary detail of the upper portion thereof, includingthe upper portion of the supporting post and the tiltablehood.

Figure 3 is a fragmentary vertical longitudinal section of the devicewith certain parts broken away and other parts omitted.

Figure 4 is a section taken on the line 4-4 of Figure 3. v p

Refen'ing to Figure 1, the numeral III designates a'base for a drier orlike device, said base supporting an upright sleeve portion ll extendingupwardly from the base, said base having castors l2 for aiding in thetransfer of the device. The upright sleeve Ii is adapted to frictionallyand telescopically receive a hollow post i3. This hollow post i3 isadapted to carry at its upper end a hood I. This hollow sleeve H andpost l3 form a vertical extensible and contractible post for adjustablysupporting the hood in the desired vertical position.

The post i3 is provided at its upper end with a plug l5 which is securedto the post l3 by a screw it. The plug I5 is provided with a pivot earl1 adapted to receive a pivot pin l8 which passes through said ear andthrough a cam shaped base member 19 fixed to and extending downward fromthe hood. The member I9, substantially U- shaped in cross section issuitably secured to the lower or underside of the hood and is adapted toembrace the pivot ear l1. A pin I8 is adapted to pass through the ear l1of the member l5 and the walls of the U shaped member IS. The forwardand underneath edge of these parallel walls are suitably curved as at 20to properly coact frictionally with a spring pressed member 29 inmaintaining the angular position of the hood, as will be more fullydescribed later.

The member IS on one side thereof is adapted to extend below the pivotIt as at I90 to abut against the member l5, thereby providing a stopagainst the counter-clockwise movement of the hood as seen in Figures 1,2 and 3. The stop portioneooperates with a suitable'shoulder 2| on theplug l5.

Inside the hood there is usually a heat or actinic ray producing devicewith or without a blower resulting in the movement of currents of warmair.

The pivot of the hood is so arranged that the center of gravity of thehood is slightly to the right of the vertical center of the post whenthe hood is positioned as indicated in Figure 3, thereby causing thehood to rest against the shoulder 2| in its normal upright position, asshown in this figure or in full lines in Figure 2. The center of gravityof the hood may however be shifted to the left of the pivot when thehood is rotated in a counter-clockwise position as shown in dot and dashlines in Figure 2. In this position the hood has a tendency to rotatefurther unless some means is provided to retard or react to thistendency. This means will be more fully described.

A slidabie sleeve surrounds the post ii at its upper end. Slots 28 areprovided in the post l3 to permit a bolt 21 which is secured to thesleeve 25, to pass diametrically through the post l3 to permit movementof the sleeve 25 on the post IS. The bolt 21 is secured to the sleeve 25by means of a nut 28 at one end thereof. The slot allows clearance forthe vertical movement of the bolt when the sleeve 25 is raised orlowered with respect to the post l3 when the hood is tilted.

Interposed between the nut and sleeve 25 and on the outside of thelatter is a member 29whlch extends upwardly and into frictionalcontactin gigagment with the curved edge 20 of the mem- An -expansionspring 30 is housed within the sleeve II and extends upwardly within thepostl3. The spring is confined between the base it and the bolt 21 andis adapted to counteract part to the combined weight of the hood andpost i3, when the hood is in any position. The friction between thepost. and sleeve together with the counteracting effect of the spring issuflicient to maintain the hood in any vertical position desired.

When it is desired to prevent elevation of the hood, a hand screw 2i maybe provided in the sleeve Ii to look the post ii to the sleeve II.

vation. The hood may however be tilted but not raised or lowered.

when it is desired to tilt the hood a knob 22 for that purpose isprovided at the closed end of the hood. The knob is grasped and the hoodmay be swung about its pivot it in a counter-clockwise direction asindicated in Figure 2. In so doing the sleeve 25 is forced downwardly.This is due to the curved edges 20 which contact with and move themember 29, and the sleeve 2! to which it is secured, downwardly. Thesleeve in moving downwardly carries with it the bolt 21 which, inresting against the spring 20, causes the compression of the spring. Thereaction of the spring effects a restraining force against thecounter-clockwise rotation of the hood.

It would be noted by the clearance between the top of the slot 28 andthe pin 21 that the post I! never touches the pin 21. The post It ishung from the pivot ii. The weight of the hood, the post, and the partscoacting therewith (28 and ii) are counteracted by the spring 30. Onlythe friction between the sleeve II and the post I: need be overcome inorder to raise or lower the hood.

The curvature 20' is of such shape as to provide sufficient frictionwhich, together with the restraining force of the spring effects an evencounterbalancing against rotation of the hood throughout its entiretilting range. It will therefore be noted that the spring 30 assists incart!- ing the weight of the entire hood and post l3 and also acts tocounteract the tilting of the hood.

It is clear from the drawing that the spring 30 is compressed when thehood is tilted, thereby offering counter-balance against such tilting ofthe hood. It will also be seen from the drawing that in tilting the hoodon the pivot IS a rubbing takes place between the curved edges 20 of themember i9 and the member 29. The steeper the curvature 20 the greaterthe friction between these parts. In order, however, to provide adesired amount of friction during tilting of thehoodthecurvatiure20isofsuchshapeastoprovide the desired friction betweenthese parts. To illustrate the eifect of these parts, let it be assumedthat the post I! and the sleeve Ii are fixed together and the hoodtilted as indicated in dot and dash lines in Figure 2. The, spring 2|pressing up against the bolt 21 urges the memberv ber it. The hoodthereforewill not tilt under the influence of the spring but will bemaintained frictlonally in the adjusted position. The spring providesthe pressure to bring about friction be- 76 tween the parts l9 and 20,which provides resistance against the overtilting or too sudden tiltingin a counter-clockwise direction of the hood. It is obvious that it thisspring were not present the hood would swing sharply in acounter-clockwise direction when its center of gravity was disposed tothe left of the vertical center of the pivot. This curvature 20 has beenfound to maintain the hood in any of its tilted positions and providesthe proper frictional requirements against unwarranted tilting.

Having thus described one embodiment of the invention it is understoodthat there are modifications which may be resorted to without digressingfrom the scope of the invention as pointed out in the claims.

What is claimed, is:-

1. In a device of the character described, a base, and a tiltable hood,telescopic means between the base and the hood, a spring in saidtelescopic means for counteracting the weight of the hood, and meansdisposed between the spring and the hood for compressing the spring whenthe hood is tilted.

2. In a device of the character described, a base, a tiltable hood,telescopic means between the base and the hood for adjusting the hoodvertically, a spring in said telescopic means for counteracting theweight of the hood, means for preventing the tilting of the hood in onedirection, and means disposed between the spring and the hood forcompressing the spring when the hood is tilted in the other direction.

3. In a device of the character described, a base, a tiltable hood,means between the base and the hood whereby the elevation of the hoodmay be varied, a spring for counteracting the weight of the hood, meanswhereby the tilt of the hood may be varied, and means coacting with saidspring for maintaining said hood in any of its tilted positions.

4. In a device of the character described, a base, a tiltable hood,telescopically cooperating members operably associated between the hoodand the base, a pivot between the hood and one of the telescopicmembers, means slidable on the said one of the telescopic membersengageable' with the hood on one side of the pivot, and a spring betweenthe base and the said means for counteracting the weight of the hood andfor resisting the tilting of the hood on the pivot.

5. In a device of the character described, a base, a hood, a memberconnected to the hood, a pivot between the hood and the member, meansfor arresting the tilting of the hood in one direction, and meansincluding a spring for urging the hood in the said direction.

6. In a device of the character described, a base, a tiltable andvertically adjustable hood carried by the base, a spring in the base forcounteracting the weight or the hood, and means disposed between thespring and the hood whereby the spring is compressed when the hood istilted.

'7. In a device of the character described, a base, a tiltable andvertically adjustable hood carried by the base, and means including aspring for counteracting the weight of the hood and for resisting thetilting thereof.

8. In a device of the character described, a

base, a tiltable and vertically adjustable hood carried by the base, aspring for counteracting the weight of the hood, and means coacting withthe spring for resisting the tilting of the hood.

9. In a device of the character described, a base, a tiltable andvertically adjustable hood carried by the base, a spring for resistingthe tilting of the hood, and means coacting with the spring forcounteracting the weight of the hood. 10. In a device of the characterdescribed, a base, a vertically adjustable hood carried by the base,means whereby the hood may be tilted in one direction only from itsnormal position, and means including a spring for counteracting theweight of the hood and for urging the hood in a direction toward itsnormal position.

11. In a device of the character described, a base, a verticallyadjustable hood carried by the base, a pivot between the base and thehood whereby the hood may be tilted, means for preventing the tilting ofthe hood in one direction from its normal position, and means includinga spring for counteracting the weight of the hood and for urging thehood in a direction toward its normal position.

12. In a device of the character described, a base, a tiltable hoodcarried by the base, telescopic means in the base whereby the hood maybe vertically adjusted, and means including a spring within thetelescopic means for counteracting the weight of the hood and forresisting the tilting thereof.

13. In a. device of the character described, a base, a verticallyadjustable hood carried by the base, pivotal means between the base andthe hood whereby the hood may be tilted, and means including a springwithin the base for counteracting the weight of the hood and forresisting the tilting thereof.

MAXIMILIAN EHRLICH.

